Impact of Different Salt-stressed Conditions on Growth, Mineral Nutrition and Fruiting of Bael (Aegle marmelos) Cultivars
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Title |
Impact of Different Salt-stressed Conditions on Growth, Mineral Nutrition and Fruiting of Bael (Aegle marmelos) Cultivars
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Creator |
Anshuman Singh, Parbodh C Sharma, MD Meena and DK Sharma
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Subject |
Aegle marmelos, Growth, Ionic relations, Salt-stress, Tolerance threshold
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Description |
Bael (Aegle marmelos) cultivars (NB-5, NB-9, CB-1 and CB-2) grown in normal (ECe 1.3 dS m-1) and saline soils (ECe 6.5 and 10.7 dS m-1) exhibited initial signs of salt injury as yellowing and scorching of leaves followed by leaf necrosis, abscission and wilting of plants. After 24 months of exposure to 6.5 dS m-1 salinity, the minimum (9.5%) and the maximum (58%) decreases in plant height were noted in NB-5 and CB-2 cultivars, respectively. High salinity (10.7 dS m-1) severely suppressed growth in all the cultivars, and NB-9 and CB-2 plants did not survive. Data on ion partitioning indicated restricted uptake of Na+ ions by NB-5 plants at moderate salinity. At high salinity, however, Na+ accumulation significantly increased in leaves and stems indicating soil saturation extract salinity (ECe) tolerance threshold limit of 6.0-7.0 dS m-1 in this cultivar. All the tested cultivars except CB-2 produced fruits in moderately saline soils with average number of fruits per plant being 2 in NB-5 and 0.67 in each NB-9 and CB-1 cultivars. However, fruit yield contributing traits like fruit length, breadth and weight significantly declined in salinized plants regardless of the cultivar. Salt stressed NB-5 plants not only prevented the accumulation of Na+ to toxic levels but also exhibited higher K+ concentrations in different parts resulting in better growth in saline soils. ICAR |
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Date |
2018-09-13T06:07:24Z
2018-09-13T06:07:24Z 2018 |
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Type |
Research Paper
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Identifier |
Singh, A., Sharma, P. C., Meena, M. D. and Sharma, D. K. 2018. Impact of Different Salt-stressed Conditions on Growth, Mineral Nutrition and Fruiting of Bael (Aegle marmelos) Cultivars. Journal of Soil Salinity and Water Quality 10(1), 80-86.
http://krishi.icar.gov.in/jspui/handle/123456789/6743 |
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Language |
English
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Publisher |
ISSSWQ
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